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актинон
n
stresses
med.
actinon
m
;
attinon
m
(изотоп радона)
актинон, An
n
tech.
actinon
m
(изотоп радона)
;
attinon
m
(изотоп радона)
актинон
радиоактивная эманация актиния
n
chem.
attinon
m
(AnEm
219
)
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